It's about building a national socialist state. Some people might feel that it's the best way to organize large number of people. Just because they hold that view doesn't mean that they are somehow bad people or have bad intentions. By itself it doesn't require any fucking with others but since most such people are also authoritarians and fascists it has lead to that in the past.
>It is about separating people who they disapprove of and killing them.
It doesn't necessarily require killing people you disapprove of. But one of the goals of nazis is to remove people of other ethnicities from their sphere of influence.
>If you're trying to normalise Nazis
Discussing something isn't normalizing it.
>you are one of them
Discussing national socialism doesn't mean that one supports their cause or shares any of their beliefs.
>and the 88 dogwhistle doesn't look good.
The 88 in his name could be reference to literally anything. It could be some athlete's number or birth year. It could be just because he likes the number. Could be anything really. You automatically assuming that it means that the guy is a nazi is just pants on retarded.