you don't need to sidechain everything to them, only sounds that are clashing with the main freqs of the kick/snare
If that bass of yours is sub then you could EQ the kick a bit or just sidechain kick to bass, the snare shouldn't affect bass at all. But from my experience, I'd say a good EQing or mixdown does the job as well, if not better. But then again it is very subjective. After all it's about what do you want to achieve in the end, how it should sound in your head.
oh and btw if you got long mid reecey sounds going throughout the track then you might want to drop a few dbs (in EQ) from the reese according to which frequencies the snare hits most, the punchy frequencies. It should instantly make sound clearer.
sometimes it's better to take out than to add, just eq the problem frequencies out of your mix
sometimes it's better to take out than to add, just eq the problem frequencies out of your mix