I think that fearmongering will only lead people further from God. I suppose that you or whoever made the video you posted don't have any hidden agenda and are posting it out of concern for your brothers, but making people worried about things they can't do absolutely anything about won't lead neither you or anyone that gets your message any closer to God.
It would be more useful to give some recommendations on staying away from poisoning and such, but as you say, the most important thing here is getting closer to God and letting God guide you. But the purpose doesn't have to be the survival of your body on this material realm, as it is bound to disappear as we know it. The fact is that population has grown like crazy which means that lots of lives are being lived, so lots of souls are completing their task in this world, while at the same time the pressure of so many experiences happening at the same time and them being more and more interconnected (due to internet, travel, etc.) is having it's effect on the consensus reality that has ruled our plane for many years.
We can see evidence that our reality is breaking or changing in things like mandela effect, physics theory getting weirder as we study it, meme magic, etc. (I'm just naming the best known for most people, I know it doesn't look serious) and in general more and more people "awakening". So at some point there won't be a single reality for all of us and each one will be way more responsible for the world he lives in.
At that point if you live in fear of an apocalyptic world and think God will save your human body and let you rebuild, you'll live in that kind of setting, still under the control of the ones who promote fearmongering with a hidden agenda (again, not you or the one who made the video).
Even if that breaking doesn't happen within our lifetimes fear of that apocalypsis will only make you miserable. Look at how everyone just seems to only think about the present. Hook up culture, getting drunk, doing drugs, not saving money, get rich quick, get fit quick, fast food are just some examples. All of this comes from people fearing a traumatic apocalypse in the future, so they don't care about tomorrow (there may be no tomorrow) and only search immediate gratification. And all of this is partially because we are bombarded with fearmongering, which has an agenda behind, and I think that even though you intention is good you are helping to further it.
PD: Maybe I sound a bit rude towards you OP, but it's the opposite, I just saw an excuse to talk about something I've been thinking about for some time and I hope it could be helpful. I'm just giving you some advice.