Hi, as far as any qualified scientific boards are currently aware there are no long-term negative effects of taking the vaccine in the vast majority of cases (the key exceptions being people with allergies to specific ingredients or those who are immunocompromised in some way) and anyone who says otherwise is knowingly or unknowingly spreading misinformation. There's of course no direct necessity to get the vaccine, but there are no proven drawbacks for the vast majority of people and the increased resistance to the virus is strong enough that for your own sake it makes more sense to take it than to avoid it.
This poster has fundamentally misunderstood what this study is saying. To be clear, I am only talking about this one because it was the one that most piqued my interest, and I have not read the papers for the other studies cited. I'm not going to judge their content because that would be intellectually dishonest of me. Having read this one, however, it becomes immediately clear that the way you have cited those figures is incredibly misleading. In the cited stats, all the use of the phrase "natural immunity" refers to people who have ALREADY CONTRACTED THE VIRUS AT LEAST ONCE. "Natural immunity" refers to the immune system's response after having already fought off the infection unaided once. The vaccine works by taking small mRNA extracts from samples of the virus and injecting it into your body as to familiarise your immune system with the genetic code of the virus so it essentially knows what to look out for, because the way your immune system works is that some of your white blood cells will "remember" certain parts of the genetics of microbes which attack you, so the first time you get a disease you likely won't have much natural defense at all and it can be very dangerous but then in further cases your body has developed protection against the disease because the cells that "know" that particular pathogen have reproduced and can combat it much more effectively. Vaccines work by activating this response without actually infecting you with the pathogen (as opposed to innoculation, which is fairly commonly used for things like chickenpox - see spreader parties), but as a result it's not at all uncommon for a lesser immune response from the vaccine than if you have suffered through the actual disease before.
Using the statistics laid out in the Model 1 subsection of the Results section of that study, we see that 257 out of the 16,215 people in that group contracted the virus in the period of time, which accounts for less than 2% of the group (approx. 1.5% vaccinated, 0.1% pre-exposed). According to the NHS website, infection rates at the time of the study (as best as i can estimate using the resources available to me after 5 minutes of googling) amounted to about 4%, including those who have been vaccinated and those with some natural immunity from prior infections. This means that having either the vaccine or natural immunity MORE THAN HALVES the likelihood of contracting covid (~4% to ~2%), with the vaccination lowering the rate by nearly two thirds alone. Additionally, the reduction is likely to be even more substantial against unvaccinated covid cases, since the figures provided by the NHS included people who have been vaccinated up to twice, and those who had previously contracted the disease. This means the unvaccinated rate of infection is significantly higher (forgive me, I haven't been able to find the exact unvaccinated rate at that time) than 4%, which means the vaccination provides even more than that, likely approaching the realms of THREE TIMES THE RESISTANCE to the virus when vaccinated.
If you're going to cite a study, for the love of god please read what it actually says before you wave it around like some fantastic trump card when its contents debunk your own manipulative and dangerous ideology. Vaccines work, and they're worth getting for everyone's sake. Refusing to get vaccines not only puts yourself at higher risk of disease, but it also puts the entire population at a higher risk. Don't condemn those around you with your selfishness.