Like the other poster mentioned FDR might be a good example for checks and balances rather than some unfettered expansion of power.
While we might not know what power the executive branch will have in 50 or 100 years we know what power it has now, and we know what power it can have in 4 years unless you really think "Emperor Trump" is a possibility.
Also while POTUS does appoint chief justices they still need to be confirmed by congress.
And regardless of what is going on neither branch of government can go against the constitution, at least not to any major extent before being reigned down.
P.S.
It's more than likely that the US had presidents recently that had pretty negative opinions about a certain population including women, I would refer you to the Nixon tapes to see just how "disgusting" a president can be in a private environment.
And while I'm fully aware that Nixon is one of the least loved presidents I don't think he was an outlier, just some one who got caught.
P.S.
I don't support Trump, I'm not an American, I don't understand how Trump even got into the race in the first place yet alone became a nominee, but I do not support any type of political oppression and thought policing.