Your probably to stupid to comprehend this but I will explain .
You see with all the Border agents processing people at the border they're less and less on patrol which makes it far easier for mules to walk across the border in places and bring drugs that are easier to carry than marijuana such as Fentanyl and heroin which are both very pricey items in the United States but a very cheap to manufacture so the profit margin is much higher than with cocaine or marijuana pound for pound. Also it's much easier to sneak one or two people across maybe a few more carrying small weights where they can move fast that way all they have to carry is enough food or water for a couple days or a day if that so it's stretched to the max there and more hard drugs are getting across the border because of Biden and Camellia Harris not doing their job.
More drugs in the United States then usually result in cheaper prices or at least more availability and people doing more drugs for the first time if it's stuff like fentanyl then a wrists their life a lot it's a very dangerous and deadly drug and extremely easy to overdose on.
So Biden's lack of action is responsible for the increase and he therefore indirectly is responsible to a degree for it himself