It’s not a simple matter of choice. Most people aren’t invested into open source, they just want to get by and do their mundane things. Most people aren’t even aware of all the privacy stuff or abusive practices of big business, it’s usually some more outspoken tech savvy person that decides to expose what the big corps are doing. So using open source is not a choice, like you would be just choosing your preferred cereal brand, but both a technical and political act. And most people are just into the system, they aren’t aware of all malicious things around them.
Not only that, but also when companies feel threatened, they start imposing new technical and legal restrictions to make using OSS harder. Since they have more control over the whole production supply chain of devices, they have more cost effective options and even partnership with hardware vendors to make using OSS very hard or impossible.
Women and gay men get horny all the time as well. So why not forbid men from taking off their shirts in hot weather?