If you think this is a worldwide conspiracy, you're crazy. The truth is somewhere in the middle.
It's really not that unreasonable. The 'elite' have long expressed a desire to reduce the worlds population e.g. both Boris Johnson and his father have publicly expressed it. The anglo-american 'elite' are the ones who spawned the eugenics movement and actually began to implement it in the early 20th century e.g. California. They clearly have no qualms about taking life. I mean they did destroy several Arab nations on complete lies, and they did subjugate and continue to economically strangle the entire African continent.
Is it really such a stretch to imagine that, possibly even for a 'justifiable' reason (models predicting catastrophe due to resource use, climate change etc), they might actually feel they have to enact such a move? They're obviously not going to tell people they're doing it. A largely voluntary global vaccination push in an emergency is obviously the best way they could accomplish this as it affords them plausible deniability by stretching out the negative affects (cancers, heart disease, sterility) so that it blends in statistically speaking, and also gives them an 'out' by being able to claim it was 'unprecedented emergency' and an 'unfortunate industrial accident due to new, not so well tested biotechnology'.
I mean it could just be about profit making, but to write off the idea as crazy is itself crazy when history clearly shows just how psychopathic these people are and how little empathy they have for their subjects. They have already demonstrated who they are (know them by their fruits), so it's not beyond the realm of reasonable possibility they would actually do something like this. As horrifying as that possibility is, the 20th century is filled with horrors caused by horrible people. It is foolhardy to think we're beyond all that, unfortunately.
Personally, unfortunately I do believe there's something seriously wrong with these concoctions. The incessant drive to get everyone jabbed.. including children, for something that is demonstrably not that dangerous at all. All the censorship and propaganda is totally incongruent with an actual health emergency (you don't need to be reminded and forced to believe in a real one). It's all extremely suspect. They would not risk destroying the publics faith in a trillion dollar cash cow unless they had a motive beyond profit.