Things are rarely black-and-white, though most people seem to see it that way. It's dangerous when our leaders loose color vision, but it is easy to understand why. Just follow the green.
Ahh yes, it always ends up in a conspiracy theory... despite the measles vaccine not actually making any money, especially not next to vitamin supplements and erection pills.
And that conspiracy theory is what points out the rest of your post as complete and total bollocks. You have no niece, just soundbites from an anti-vaxxer site.
I have a nephew, I'm glad my sister has made sure he has had the full suite of vaccines required for him. Why? because I've actually seen people disfigured from Polio because they weren't lucky enough to be born in a first world country like me. Vihn's parents didn't get the luxury of refusing a vaccine whilst being protected from debilitating illnesses by the rest who are not so selfish. Nope, Vihn got Polio because 30 years ago in Vietnam, vaccines were rare things, yes only 30 years ago.
Polio cases dropped from 350,000 in 1988 to just 74 in 2015. Vaccines alone did this.
If we stopped vaccinations for measles alone, the cases would increase by 60% worldwide... We'd be looking at more like 90% in developed nations as that 60% figure includes developing nations without extensive vaccination programs (mainly due to local problems like wars and oppressive governments, its getting access to people that's the problem). So I'll give your the benefit of the doubt, consider what your daughter went through and then look out side and tell me, say aloud to yourself... I think 9 more children should have to go through what my niece did. 9 more parents should have to suffer like my siblings did.
But you wont, because it would mean questioning your beliefs. I'll just leave this here: