Like the others have said mate. This is just pain wrong and you need to stop believing the crap you read on Facebook.The Vaccine will NOT protect those around you if you have the shot. You can still get Covid and spread it. Only difference is that if those around you have had the shot they will not get really sick and should not need hospitalization. But even then some people double vaxxed have been in intensive care. If they have not had the shot then they MAY get really sick, need hospitalization, be on a respirator and may die. All the vax really does is give YOU better protection than those who do not take the shot. And even then some question if that medical opinion is true as well.
Yes you may still get it unfortunately. That is basically what the "efficacy" rating is. 10% chance you may still get it. Then there is basically a 10% or less chance (I think it is in the single figures off last read, especially if you are healthy) that if you do get unlucky enough that your body doesn't respond effectively to vaccines, you may get sick enough to go to hospital. Thats 10% of 10%
Then there is the face of viral load in vaccinated people. I can't remember the exact number but it is something like 10x lower in the 10% of people that manage to catch it still, so 1000% less amount of virus particles you are firing into the air for others to catch (don't quote those figures as I can't remember them exactly but am not going to be doing all the research for misinformed people)
Take away is none of this is new. You're being misled on a very complex topic. It isn't simple. Trust the science. None of it is new. You seriously do not want this virus. It stuff you up big time, and not just for the period you have it for. I am in a line of work where unfortunately a few people have got it, and none of them have bounced back to be the same since.