so, liberalism is decidedly right of centre. it requires buying into capitalism, but it’s not as far gone as the GOP. The US dems are left of the GOP, but right on a more absolute political meter.
Bernie is leftist, but Biden & co are properly right of centre. Your Overton window has shifted so far to the right that a leftist politician will have a harder path than a snowball in hell.
I say this as someone that has a neolib prime minister (Trudeau).
Suffice to say, liberals and conservatives have the same goals, liberals just prefer a sustainable labour class.