The only way to prevent spam is to outbid them in the fee market.
Discussion
Of course it is... Keep deluding yourself. 
You're literally a victim of the same sort of propaganda that was used to turn people into COVID hysterics.
So you're going to volunteer to pay higher fees so that CP doesn't get into the next block and do this every block? That's insane. You're going to get outbid by trolls willing to go the extra mile. Those who want to destroy something will put a lot of effort into do it... especially if they have a money printer behind them and it costs them nothing.
and really I meant to put all non-monetary transactions not just CP, I don't want any of it. It's all garbage.