Advice on rhetorical usage?

Tu quoque:

(Latin for "you, too" or "you, also") or the appeal to hypocrisy, is a logical fallacy that attempts to discredit the opponent's position by asserting the opponent's failure to act consistently in accordance with that position

It’s generally called a retort.

From Oxford English Dictionary (OED):

retort, v.1

Senses relating to reply or retaliation in kind.

To throw or hurl (a charge, accusation, epithet, etc.) back (against, †in, on, †to, or upon the originator).

I guess the saying 'tit for tat' corresponds to what you're looking for.

Merriam Webster

an equivalent given in return (as for an injury) : retaliation in kind

tit-for-tat adjective