As someone who knows many people who were high-quality Spanish speaking elementary teachers in Texas, it's hard to find skilled and qualified people willing to work at that level working for the wages being offered when the cost of living is what it is and other jobs are offering considerably more.

When you can have 80% of the take home apay but have fewer parents issuing death threats while filling tacos at Taco Bell (and they pay for your community college to go elsewhere) it's no surprise teachers choose to go elsewhere.

Practically every school district in Texas is facing a qualified teacher shortage.