Good point pepperhead212. Basil will get big enough you would need to limit to 1 plant per minimum 8” pot — 10-12” would be better.
It looks like some of those — very young ...likely bunch of seedlings — may have been too damaged anyway and this will make culling easier. Clip those at soil level, get rid of browned leaves which will not recover, wait another day to see if more will show damage... then I would start by slipping the entire rootball out of this pot and dividing in 4 pieces to start with. If they are too tangled, easiest to just take a kitchen knife, slip the blade between the stems and cut into 4-6 pieces like a cake. Then re-plant the pieces in bigger pots. Some of them will die from having too cut off from their roots. That’s OK.
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