Why blame Mexico, when the Biden administration doesn't have any intent to stop the migrant flow? For Biden, a larger illegal alien population inside the USA is beneficial in the long run, as they are likely to vote for left-wing parties once they receive citizenship. Last year of Trump regime (2020) saw around 300,000 border apprehensions at the southern border. For FY22, it spiked to 2,200,000. For this year, the number is going to be even higher. Blaming Mexico, or it's president Andrés Manuel López Obrador for this mess is just a tactic to divert attention.
You should spend more time researching Bidens actual border policies instead of consuming Right wing pundit talking points. I've already given you links and explanations on what Biden has done and is trying to do at the border, but it seems like you're not interested in reality, just repeating things you find in the rage bait right wing echo chamber. Most of them are obviously false or misleading. Do you even care?
This is not about Biden or what policies that the Whitehouse presently have on border control. This is the reality of what really is happening in some counties and areas near the border. This information straight from the sherriff and the congressman. According to the sherrif, they are
It can also be argued that this might not be good for America's national security. I wish this does not happen but a group of terrorists could go in and make another 9/11.