The only way you wouldn’t see the overlap is if you’re not paying attention.

https://www.pbs.org/newshour/politics/trump-says-he-didnt-know-his-immigration-rhetoric-echoes-hitler-thats-part-of-a-broader-pattern

Trump has basically paraphrased from Hitler on numerous occasions, has the support of the KKK and neonazis. All he does is spread hate.

The comparison here is valid.