You seem really focussed on labels rather than the essence of the issue, one of the many reasons I dislike the current wave of middle-class liberalism, it's all about identity and labels, not about the substance.
I am quickly writing posts on MN to share my views, not defending a thesis in front of my superiors. As a migrant, I am actually chuffed to bits to master British cultural references from 1997 (if that's what it is), thanks for the compliment.
Liberals don't want better for everyone, they want better for everyone "except the fascists", important nuance. And the definition of "fascism" is expanding very wide these days. The fewer solutions they have (when you don't want to face the real problems, no wonder you got no solutions), the more everyone is a fascist, how strange. You think immigration is a problem -> You are a Reform -> You are a fascist. And it goes the same for gender, for Palestine, for benefits, etc. Look at how quickly I got a xenophobic remark, look at the statistics showing the left is actually more totalitarian than the rest of society ...
You are right that liberal democracy brought us prosperity, it did. But it stopped in the late 90s when left and right combined went all in for globalisation and free trade. It decimated European industries and by extension the working classes the Left was supposed to protect.