I've demonstrated the best way against your strategy here.
Playing the "Copycat" Opening

I've demonstrated the best way against your strategy here.
Cool tricks. In the games I played, I decided to break off from copying if it would immediately lead to me losing a minor piece or worse (without being able to recapture). So those lines wouldn't work as I would simply take the queen. I wasn't playing "true" copycat, more of a "practical" copycat.

I've also occasionally played like this, in particular against 'system' players (London, Colle, Stonewall attack, KIA, &c).
This is an extremely lazy approach: you'll get your pieces out without effort, you save time, and you await the errors to come when they are trying to break symmetry. And these errors are sure to come …
I used to just copy my opponents' moves as a kid. Obviously, I know it is bad now but I thought I would give it a try again for fun in <1400 blitz. I played 4 games and it went better than expected (1w/1d/2l). When people don't know how to take advantage of this strategy it leads to really weird and funny games like the one below.
Do you guys have any other bad but fun strategies I should try out?

P.S.
I made a youtube video from these games (https://youtu.be/3GtqoDj9Hl8). Also, you should add me