There's nothing wrong with having a nerdy hobby. But if you expect to find a romantic partner, limiting yourself to people who share your enthusiasm on this one thing is playing the dating game on extra hard mode.
It's way easier if you have a few interests that others can relate to, like going to concerts or going to the theater or rock climbing or whatever.
It's not "faking it" when you do something outside your comfort zone, I'd see it more as "expanding your horizon".
I see logic in this, but sequitur is that his hobby must leave him with no dates at all, which is so far from reality. Of course "racing" can be more easily related to, but this interest is shallow as I described. I bet that he speaks to me about these details because barely somebody else can understand it and has the same level of interest in it. Not even because I do e-racing (he's unaware of that), just because tech details are not popular, but money and fame are.
It's way easier if you have a few interests that others can relate to, like going to concerts or going to the theater or rock climbing or whatever.
It's not "faking it" when you do something outside your comfort zone, I'd see it more as "expanding your horizon".