This type of stuff will be the bane of large companies migrating to cloud. A lot of large companies are involved in defense initiatives, law enforcement, fossil fuel extraction, mineral extraction etc. If they have to worry about what latest moral crusade will try to get you kicked off the cloud platform, they will be a lot more reticent about migrating to cloud.
In addition, if you were a fossil fuel or car company that makes gas burning vehicles, how confident are you that one of those people that is walking out to try to get you kicked off the platform, won't try to be a "hero" and use their insider access to try to sabotage your operations or leak confidential data? I mean if the cause is worthy enough, all sorts of activities that would be illegal are considered justified. I mean if a person thinks they are literally saving the planet from destruction, sabotaging an oil company's cloud infrastructure seems like something that they would at least seriously consider doing.
I think Amazon and the other cloud companies need to come down hard and state unequivocally that cloud services are not fodder for political crusades, and they will allow all companies that are conducting legal business activities, to be able to use their cloud.