He is by far the best.
"Cant even get into City" is a bad reason why he wouldnt be good enough for England. Maguire, Dunk, Mings and any other English CB you could think of would struggle to get play time with Dias and Laporte around.
Early goal for Brighton and I think it will be easy but obviously that is far from guaranteed to happen and this could easily turn into a bit of nail biter.