Left-leaning politics has moved to very mild, not-even-social-democracy policies, taxation of wage income, a decreased focus on capital owners.
Left-leaning politics has thus been transformed beyond belief and has very little to do with what it used to. Most politicians have no idea about physical reality, which is the ultimate source of technology, but live sometimes in a world of administration, sometimes in a world of laws and sometimes in a world of politics only.
Left-liberals don't exist. Liberalism is a right-wing ideology: free trade, laissez-faire.
So I don't understand at all what you mean. What are the SocDems who have gone from being SocDems to not knowing what social democracy is and who now think about things like welfare and administrative stuff and living in a world of compromises attached to?
I can't see that they're attached to anything, and I think I despise them for it. At least someone who looks back to the past can look at it and critique it and see what ideas were valuable, what the real goals were, that led to different positive achievements.