Why do leftists who think border wall is a waste of money use Republicans turning down the bipartisan border bill as an excuse to attack Republicans?

Why are they unhappy Republicans did what they think is right and turned down the bill that in their opinion waste money? Why not instead direct their anger at Biden for going back at his word about not funding more wall?

Why do leftists who think border wall is a waste of money use Republicans turning down the bipartisan border bill as an excuse to attack Republicans?
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