That is possible, but we're talking about different time constants here. Antibiotic resistance can arise in a few generations. Evolving a different membrane com

That is possible, but we're talking about different time constants here. Antibiotic resistance can arise in a few generations. Evolving a different membrane composition that will block that particular toxin and not the other ingredients the cell requires to function (amino acids, carbohydrates, etc), is much less probable to take place in such a short time