Most wealthy people get their wealth from the labor of poor people. If poor people have easy lives, and need to work less hard for fun and to enjoy life, then they are less likely to work hard and wealthy people are less likely to stay wealthy.
I can't demonstrate a causal link because it would be impossible to design a study really showing that.
To demonstrate anything, I'd have to get a group of wealthy people and determine which of them don't want poor being free (and just asking them wouldn't reveal that).
Then I'd have to determine which of the wealthy people hate e-bikes by asking them.
Then I would have to see if there was a correlation.
If you use Democrat versus Republican as a proxy for the first inquiry, it would be an easier but less approximate estimation.
In order try to show causation (and it would be a iffy showing), you would have to take wealthy people and measure their views of e-bikes, wait a week, divide them in three, and show them films of poor people. One film would show poor people disliking ebikes and being unhappy. One film would show poor people feeling free after using ebikes and having nicer lives. One would be a film of a a film that showed something as neutral as possible, like a show about how to do math problems. That wouldn't actually be neutral, so if a budget allowed there would be a fourth group with no tv show at all. Then measure their views of e-bikes again and see if they changed.
I can't prove any of this, but the wealthy people shown groups of poor people happy using e-bikes would probably have more negative views of e-bikes after on average because this is a control issue. E-bikes are cool and great for the planet and rich people who don't like them only have 1 rational reason: wanting to maintain their lifestyle and concern that the lower classes finding more fun may reduce that. (And alcohol is fun and promoted because lower classes who use it a lot are more likely to have less intelligent children who will lack social mobility and can be exploited more easily.)
So yes, I don't have a budget or inclination to prove this, but it's not an impossible thing to prove nor is it irrational.
Ask yourself this: if these e-bikes were extremely expensive and so expensive that only the rich could use them, would rich people complain?
The upper classes do not always explicitly think about things, like "oh, a Democrat is in power, seems like a great time to price gouge" or "hmm, all the other top leaders are firing people and price gouging since there's a liberal in power, I should do it too" but these things do happen. Doing things to treat lower classes harshly isn't always specifically talked about and planned, it's just something those at the top do because they know others will as well and they also don't believe the lower classes will recognize it and fight back politically, especially when the more religious party always favors the rich and religion helps increase class complacency.
I'm not against people making money or being successful, but there is a certain level of exploitation that goes on and it's not always explicit and it's not always planned out in clear language and it still happens
A large part of this is about control. E-bikes are affordable, easy to use, and make it easy and cheaper for anyone, even poor people, to get around. The upper classes do not want the lower classes free on any level.
Even if you want to be mad at her for being rich and being part of the oligopoly that is creating suffering and impending environmental doom, can you blame her for requesting the portrait be taken down? It's really unflattering and doesn't look that much like her. She didn't demand it, she asked. No one likes being humiliated, and that portrait probably made her feel terrible. There's nothing wrong with making a request, most people in her position would do the same.
She should create a foundation to called "The Institute for Reduced World Suffering" and make the charter bylaws include her picture on anything sent out, any website, any marketing material, and her photo must be on any material generated by the organization, and it can only be 1 type of picture that she chooses, then she should have an artist do a really flattering picture of her that makes her look nice. In the Institute's first year, she should offer 10 10,000 grants to those who study reduced world suffering and in announcing the grants opportunity she could include her picture in the advertisements. She could let anyone apply and she chooses the winners. She could turn a strange situation into something wonderful if she wants.