We have a tendency to think of these problems like mechanical systems, where if you pull one pin, the machine stops. It’s better to consider them like weeds… you have a dandelion in your yard, yes, but there is a field of green flat little plants growing before the first cotton bandit sticks its head up. To deal with a weed infestation, you either need to get every single one, make the environment inhospitable to the weed, or introduce something you want that crowds them out.