@OP
You asked 2 question's. The first one is on your Topic Title
Why Do So Few Players Take On c3?
The second one is the below question which I highlighted in green.
The questions in orange have already been answered. You answered them with the text I highlighted in blue.
White's idea is to play Qd1-Qg4, Bd3, and then Nf3 when he has a nice attack rolling on the kingside, but how is white supposed to play with tripled pawns?
I gave you my analysis of the position in which are most seen by high level players. I did so in order to show why I believe they take on c3.
Than I compared it to your position. Furthermore, I proceeded to give you my interpretation of why I believe in your position it is not so great to take the piece on c3.
Why do you feel the need to give me a lacture?
You are telling me everything I already know. I'm not clueless about the French.
God, that was a long and obnoxious post...
The fact you think 5. dxc5 deserves a dubious symbol makes me question your entire post.
You than say the above posts to me?


"And why do so few grandmasters, and even lower-ranked players avoid taking the piece?"
Because a3 looks so much more sensible.