Yeah, housing can't be an investment AND affordable. Investments have to grow faster than inflation. Affordable things can't do that.
That being said it's hard to blame "homeowners" because the goal is to make more people into homeowners, it's kind of backwards to antagonize the goal itself.
Certainly though the current perception needs to change, you don't buy a house as an investment, you buy it so that you get to keep your "rent" as equity, and you get to lock down your "rent" over 25+ years so that it effectively gets cheaper in relation to your income.