MILLENNIALS WANT EVERYONE TO KNOW THESE FIVE THINGS--WHICH OLDER GENERATIONS DON'T UNDERSTAND

So very tedious.
Start with the fact that they couldn't figure out which false presupposition they wanted to cram into the title...so they just added a dash and crammed 'em both in.  First, they want you to know these things--presupposing that they constitute knowledge, ergo are true. Second, the reason you don't get it is that you're old...
   As for the specific points:
 [1] Everyone already knows this. No one has ever not known this. The only people who are currently confused about this is the PCs themselves, who pretend that politically incorrect truths are "hate speech."
[2] This is false, so no one can know it. So much for the first part of the title.
[3]  The word you're searching for is 'patriotism,' not 'nationalism.'
[4]  "Inclusive language" is fine in many cases. The problem, of course, is overdoing it, and insisting that others comply with your preferences in cases in which it's optional. And anyone who feels "unsafe" on account of taking offense is a bed-wetting mamma's boy...or...child... Which most PCs/SJWs, in fact, are.
[5]  No they aren't, and just asserting it doesn't make it so. And they're not even being "sensitive," really--they're being oversensitive. Pretending that wetting your pants at every violation of terminological fashion is being a "morally-minded and ethically-informed global citizen" is just pathetically stupid.