Some Republicans want a more draconian bill than the compromise.

According to many Democrats, Republicans, in the House, sank the bipartisan border bill so Trump could use border problems as campaign talking points.

Republicans have a different take. They will say the border bill was sank because it wasn't tight enough. I would replace the word tight with draconian. Many Republicans want to, basically, close the border and send folks seeking asylum back to their dangerous countries of origin while turning a blind eye on human suffering.

Many Republicans would wish to round up undocumented folks to deport them, or place them in concentration camps. They advocate more draconian policies.

It is true that growing population and the worldwide migration crisis does overwhelm existing infrastructure in the countries that people are trying to migrate to. This situation does tend to fuel right wing politics around the world, including here in USA.