That's actually probably not how RMS would respond. He goes out of his way to emphasize that Free Software is fundamentally about morality rather than any sort of pragmatic reasons like security. He would probably make some analogy equating you choosing to use Gmail with some hypothetical people in the past choosing slavery or indentured servitude because they either didn't know any better or had no better choices in life. He might even chastise you for choosing expediency over moral correctness, and he might even question your own morality because you are contributing to the capital-E Evil in the world by doing so.
You might think that this is somewhat crazy and shortsighted and absolutist and nonconstructive, and you might question the groundedness of someone who equates other people's choices in mail clients with things like slavery, and you'd be quite correct in feeling that way. If you then vocalize these concerns, you will be roundly flamed by one or more CS undergrads claiming that you just don't get it and that you either need to get on board or be steamrollered by history. You might think said CS undergrads are also a little lacking in the groundedness and perspective departments, and you'd probably be right about that too.
You might think that this is somewhat crazy and shortsighted and absolutist and nonconstructive, and you might question the groundedness of someone who equates other people's choices in mail clients with things like slavery, and you'd be quite correct in feeling that way. If you then vocalize these concerns, you will be roundly flamed by one or more CS undergrads claiming that you just don't get it and that you either need to get on board or be steamrollered by history. You might think said CS undergrads are also a little lacking in the groundedness and perspective departments, and you'd probably be right about that too.