I don't buy that this is entirely or even largely the result of Latinos disliking socialism. It may be a major factor among Cuban and Venezuelan voters, but what real beef does a 20 year old Mexican dude have with socialism that a white dude of the same age doesn't? Seems like a stretch to me. What I think is more likely is that we're seeing more and more Latinos begin to develop an identification with White America and less so with being Latino. This is the same process that the Irish, Italians, and Eastern Europeans underwent. And guess how those ethnic groups tend to vote now.
Here in Rhode Island, it was seeing Biden as too socialist, and the Latino population becoming more anti-abortion than before:
https://www.wpri.com/news/elections/biden-outperforms-clinton-trump-makes-gains-in-ri-latino-communities/
There's no actual polling or data in this article on Latino attitudes towards socialism. They just asked a Mayor for her opinion. I'm gonna need a little more evidence than that since Sanders polled very well with Latino voters in the primary.