Yes, they do, the anti-17th crowd is so deluded they believe career politicians in the state legs "oppose federal power", which is so stupid it's not even laughable. It's even more hilarious because the same people usually back weak primary challengers to any incumbent, who would have no chance under their preferred electoral system.
And never mind the entire idea of repealing the 17th is politically untenable, talk about a wedge issue, the polls would go about 90-10 against. But they won't ever shut about it.
I agree entirely with your position in favor of the 17th Amendment and of popular election of US Senators.