Hey, where's my Protestantism?

I think the attraction of Rome is in large part generated by the fact that one needs a reason not to be Catholic, and that the classic Protestant reasons for not being so have largely vanished -- three of the key issues for Luther in the Reformation (as for others) were perspicuity of scripture, justification by grace through faith, and the interconnection of these two in the matter of authority.  Given that contemporary evangelical Protestantism has largely abandoned the first two, with clear implications for the third, there is no real reason for many to remain Protestant.