If I saw proof that the XBox is more popular than the PS brand in America then perhaps we can talk. What I have so far is:
PS2 beat Xbox brand in America
Xbox brand beat the PS3 in America
PS4 is beating the Xbox brand in America.
So, I'm uncertain on what foundation you're basing this supposed 'preference' on. I think it's clear that Sony are more popular than Microsoft in America when it comes to consoles.
The PS5 Exists.