They have been here in the US for a long time, I think their first american store opened in the 70s. Personally I love Aldi I shop at my local one here in Missouri at least once a week. Their price on extra firm tofu just can’t be beat its at least 1/3 the price it is at my other local supermarkets.
Well the good news is that the Biden admin is currently trying to do something about the situation. The root cause is PBMs basically using their market power to squeeze everyone and redirect all the profit to themselves leaving nothing for the actual pharmacies. The FTC under Lina Khan has been investigating the issue for a while now and is currently starting litigation against the PBMs. It would be nice if we could get a functional congress that would pass good legislation to solve the issue instead of leaning on the limited power of regulators and unreliable and sometimes corrupt courts though.