Yeah as I said, I kind of have mixed feelings about RTC and bike trails in general. Rail Trails serve a purpose and can be great for a place for families to take their kids or others who may not otherwise ride on the roads. I don't like that folks use them as a reason why bikes should be kept off the highways. There is significant sentiment that would like to say that bikes don't belong on the public highways and the more bike trails there are the more they say that is where bike belong.
When it comes to long distance trails for multiday touring I have even less interest in bike trails. With some exceptions I tend to avoid bike trails especially long distance ones when on tour.
As a result of all that, while I am not completely anti-bike trail, I am also not inclined to donate to causes like RTC.