Yes, men focus a lot on looks.
But... there are a lot of people who aren't into a substantial chest and an arse the size of Belgium. I'm not entirely sure how that came to be regarded as some sort of 'ideal', because most people regarded as 'attractive' in the celebrity world don't fit it and men don't seem to be in agreement...
I suspect it's come about because the modern, socially acceptable thing to do is to dismiss slim bodies as 'unobtainable' and that makes it difficult for anyone to get away with idealising them. Instead, it's become the done thing in recent years to celebrate curves. Rather bizarrely, the Kim Kardashian-style curvy bodies - huge chest, tiny waist, huge arse - landed in the 'OK to idealise' category, despite being far less obtainable than slim bodies. So they ended up receiving strong 'this is ideal' backing, probably because they're so rare, at least as far as the unrealistic world of social media is concerned...
Reality is, there isn't an ideal. Men, and women into women, like all kinds, just like they did 15 years ago when celebrity magazines poked fun at women whose backsides had got bigger than a tangerine. Looks are important, but preferences are far more varied than Instagram/the media would have us believe.