How to counteract the Trompowsky Attack?

@pestebalcanica
In your Diagram it would be crazy for white to play 2.Bg5 in such a position.
White has no reason to play 1.d4 c6 2.Bg5?!
Here's a drillable set up JUST for combating the Trompowsky...
https://www.chessable.com/opening-book/trample-the-trompowsky/3656/

Unsuprisingly what Karajin played in the first game of WC match 1.d4 Nf6 2Bg5 d5 and a later c5 is one of the soundest and straightforward lines for black,
Black can play any of Ne4, d5, c5 or e6 and be fine. Black can just pick the one that leads to positions they like and know it very well. White is not going to get anything if black knows his stuff, but it's just a playable game and can be interesting.

Playing in the good old classical fashion is good enough . Here , a player rated over 1900 is beaten in such an astonishing way.

2...g6 is unpleasant for Black after exchanging on f6 and the correct setup of c4, e3, g3, Nc3, Nge2, Bg2, 0-0 and then pushing the b-pawn. For example,

I now believe that the easiest move to play is 2...d5. As a KID player, this is obviously not a move I like making, but the alternatives are very messy, and I don't want to learn lots of theory for a line which has only come up once so far in my 10 years of playing chess competitively (see above Gardiner game). Then 3.Bxf6 exf6 {3...gxf6!? is an interesting alternative} is very solid (and a sort of improved 2...g6 line), while 3.e3 isn't something to lose sleep over - it's just a game. 3.Nc3 transposes to a Veresov.
The Trompowsky was recently tried by Terese against Paul in Neighbours. Paul's reply was to say "ooo the Trompowsky Attack, how interesting" acting like he knew it well and was pleased to see it come up, while Terese denies all knowledge of the opening - which seems unlikely considering it's not the most natural move someone would make. Paul calls her bluff and says Harlow better sub back - perhaps Paul's way of tactfully getting out of an opening he hadn't prepared or had confidence for.
https://www.dailymotion.com/video/x7qvmbt?start=867
If it were me against Paul I think I'd try something involving an early Ne2-f4 like the Reshevsky opening. Paul will start his usual dirty tricks but leave himself open at the back and before he knows it there'll be a bunch of pieces bearing down on his king.