I really don't understand, my definition of Liberal has always been "Favoring reform, open to new ideas, and tolerant of the ideas and behavior of others; not bound by traditional thinking; broad-minded" which is something I subscribe to. Before I came to lemmy I never even heard of people refer to liberals as anything other than that.
Now if you were to say "Liberal Party of NY" or "Liberal Party of Canada" etc then I can see how more specific political beliefs across their ranks could be made points out of, but if you just say all Liberals then you sound like a frother to me.