Here is another proposal from the Utah legislature that would effect GSENM:
http://www.sltrib.com/news/4789600-155/proposal-to-create-utah-state-park
While this seems less bad than the other proposal to shrink GSENM (which appears to primarily be motivated by a pipe dream to mine coal on the kaiparowits plateau), I am also against this. First it sets a bad precedent for transferring federal land to state control, secondly while Utah State Parks are nice, they are generally speaking very heavily developed (camp grounds with hook ups, visitors centers, snack shops) which is pretty inconsistent with the rugged nature of this area. Finally I suspect there are some religious motivations to this park - to promote mormonism. There are already 'visitors centers' at both ends off hole in the rock (Escalante and Bluff) that are thinly disguised tools for evangelism.
As for a boycott - I think the most effective approach, and what we will try is to avoid spending money in the rest of the state, but spend money in Boulder/Escalante etc while making it clear that you are there to visit the monument. The state politicians claim that the locals in SE Utah are entirely against the monument, whereas at meetings in Escalante many business owners have tried to explain the positive economic impact of the monument and there support for it. Spending money and mentioning the monument helps reinforce this narrative.