There have been some legitimate questions asked in this and other threads about the effect of such a boycott, whether by individuals or organisations, so I would just like to explain my own reasoning on the basis that this is an entirely personal decision and is not one I would put pressure on others to follow. It's not just about this or even any other human rights issue. Even putting those aside, my view is there's just something about this World Cup hosting choice and process that outstrips any other, even Russia and the similar criticisms made about that country getting the World Cup. My opinion is that it really does feel like new and uncharted depths have been plunged, even by FIFA'a standards.
I know that even if enough people switch off to make a noticable difference in viewing figures it won't make any impact on anyone or anything that matters. For me it's a matter of conscience. I would feel like if I watched as normal, I would be implicitly tolerating all of these issues (whether it's human rights, the corrupt nature of the process or anything else) and deciding that wanting to watch football is more important than those things. Perhaps it's easier for me both because I am much less engaged with football (usually only watching international tournaments) and because of how much more I can relate to those expressing their opposition and their reasons, which makes it hard to knowingly go against their wishes.
That being said, I do like the suggestions and reasoning given by some in this thread about why watching in a gay bar or similar actions can still be considered a middle finger to Qatar and it's policies, so go for it