When you're an early-stage, cash-strapped business entity, doing business in TX probably seems like an acceptable risk.
Actually that limit is $1.11m.
"Franchise tax is based on a taxable entity’s margin."
The state, and especially that part of the state within that federal court district, being generally friendly to one type of party or another has to do with more than state laws. It has to do with public perception, legal specializations in that court district, and more. The juries are selected from that public and local attorneys in a district known for patent trolling will likely specialize in patent trolling cases.
https://en.wikipedia.org/wiki/United_States_federal_judicial...
https://en.wikipedia.org/wiki/United_States_District_Court_f...
What really needs to happen is anyone's guess. Every system someone comes up with will likely have a flaw to be exploited.