Strowman isn't beating up vanilla midgets. He's beating up just about anyone.
The wwe is PG. There ain't gonna be a mobster gimmick. Matter of fact I think the last time they had a mobster gimmick was back when Guido & the FBI was still around & that was like a decade ago. Maybe even longer than that.
Him setting his sights on the cruiserweight division is a new direction for him.
He is who he is. He's a Russian brute. No need to give him any unnecessary additions.
Personally the idea of him wearing track suits & being greased down sound like something they did with kozlov which was corny.
And what about Baron Corbin who bullies little guys and was mad at cruiserweights on SD

You're basically suggesting that the best thing for him is to be another guy who bullies little people when there's 2 of those on the roster rn.
The Russian nationalist gimmick is not gonna take him to new heights no matter what they do with it. And it's not like this is just me, when everybody knows Rusev as a character is and has always been ehh
And it doesn't have to be an explicitly defined "Russian mobster" gimmick if you're concerned about PG, the core of my suggested character is that he's a European who walks around in suits and jewelry, has scary goons in tats, a bad bytch, and is mean. He could be defined as a crooked businessman, a Russian tyc00n, whatever you want.... You could even make him GM of Raw and just have him be an evil authority figure and it would work the same. And it's not like a mobster character is too wild for PG TV anyways, as long as you don't have gratuitous death, violence, cursing, or sex it should be fine