You have a masserati (ethernet) driving on a dirt road (boost). You are limited by the dirt road, not the car. -- NOTHING justifies terrorism. We don't negotiate with terrorists. Those that support terrorists are terrorists.
As others have said, you are already way faster than Boost+ can handle even at 50Mbps. Cat5 cables are 100Mbps while 5E is rated at 1Gbps so either one is already more than enough. CAT6 is not necessary so just save your money.