How they do aiding and abetting? Giving people ability self custody of some shitcoins?
What do people if trezor don't give tham this ability? They go with ledger or have it on exchange. Nobody buy shitcoin because trezor give them ability to selfcustody it on HW wallet. If anythin trezor limit which shitcoin they buy, because trezor support subset of shitcoins and suit even less.
Lot of shitcoiners in time transform into bitcoiner. Bitcoin first HW wallet with support of some shitcoins is great tool for help them with transition.