Certainly we need better border enforcement, but the real key is to enforce our internal laws.
Fine and punish the employers.
No school, health benefits, or welfare payments to illegals, beyond limited emergency services.
The problem is not just the border, but the financial incentives to come here. We need to lean on the politicians at every level to enforce the laws.
We need to penalize the employers. One way would be to disallow any payments to illegal aliens as ordinary business expenses.