incest/pseudo-incest question

We all know incest is morally and objectively wrong for a number of reasons right? but I thought up a scenario that contradicts that idea. Im going to make up a hypothetical: say theres 2 guys, the same age, who are gay. Their parents get remarried to eachother and the 2 guys happen to fall into a relationship. That is technically considered pseudo-incest. The reason I use this specific scenario is because 2 guys cannot reproduce, and since they're the same age and havent lived together as 'siblings' for a long time, there is no power dynamic involved.

Is this relationship still objectively wrong to have, even without the usual arguments against incest? If so, can you share your thoughts?

BTW, before anyone jumps me and calls me a freak, its a genuine question which I want a genuine answer for. I'm curious and open to learning if you think I am wrong. I dont have any strong opinions on this but I however dont see anything objectively wrong with this specific scenario.