Why is this border dilemma so complicated? When they crossover illegally, why not just put them back on the other side?

Why is it that Trump can manage this simple process but Biden cannot?
Why is this border dilemma so complicated? When they crossover illegally, why not just put them back on the other side?
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I'm not talking about scum-bag politicians or greedy business people... we get that.
I'm talking about stupid voters that defend scum-bag politicians and greedy business people.
Why is this border dilemma so complicated? When they crossover illegally, why not just put them back on the other side?
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