You will never agree with every organization or every politician. For the most part from what I have seen they push hard for public access, more so than any other organization I am aware of. Their demographics are young, active and well versed in online social media.

BHA members are politically diverse: 32 percent of respondents identify as Independent, 25 percent as Republican and 16 percent as Democrat (17 percent responded “none of the above” and 10 percent preferred not to answer).
BHA members are young: 34 percent of respondents are between the ages of 25-34; 32 percent are between 35-44. Thirty percent are 45 and older, and 3 percent are younger than 24.
BHA members are active online: 63 percent of respondents prefer to get information about BHA from BHA’s social media channels, BHA’s online newsletter and backcountryhunters.org.
BHA members include large numbers of military servicemembers and veterans: 12 percent of respondents are military veterans, higher than the U.S. average.
BHA members are passionate about public lands: 25 percent of respondents spend 100 percent of their time hunting, fishing and recreating on public lands and waters; 57 percent spend half or more of their time on our shared public estate.

You will never find the perfect group, just as you will never find the perfect politician. If you like what they pursue and like hunting public lands and their causes, it’s best to at a minimum help support this particular case. If you want to lose out on Millions of locked out public lands keep up your tirade. The majority of sportsmen are in agreement on this issue and don’t let small issues impede their judgment.