I hate to say this, but you can have a million "Disclosure" conferences, with all kinds of authentic evidence, but the reality is Most humans will
still Not believe any information as to the existence of "Aliens from another World" on planet Earth.
All these conferences, TV specials etc, are made to make money for the participants, nothing else.
Even the Best evidence on the Planet, will be discredited by somebody, somehow....
The ONLY way for Earth inhabitants to Really Believe we are not alone, is for the ALIENS themselves to tell us.
Yes we are a warmongering, greedy, selfish species of bipedal primate. Ready to destroy ourselves, and every other living creature on this Planet.
Is it ANY wonder the Aliens have not made widespread contact.
The only hope would be for a "Klatu" and a fleet of spacecraft to land in most major cities and perform some special "Trick" that only they could
do.....even then, there would be sceptics, religious nuts, debunkers abound, who will say its all false....nothing to see here...pictures of me having
dinner with them and sex with a space babe...or it didnt happen.