This is the typical modern fan response. Braun Strowman debuted 30 seconds ago and someone's already calling for Kane to put him over and have his career ended. This obsession with the youth movement needs to die. You don't create the future by destroying the present, you create the future by BUILDING on the present. Kane being annihilated by Braun Strowman will accomplish nothing. If indeed they do feud, it needs to end 2-1 in Kane's favor.
And this is the typical Aquaman response. All you care about is preserving the legacies of people who are not going to be around 5 years from now; "Brock Lesnar beating Undertaker ruins Taker's legacy", "Kevin Owens beating the face of the company is an embarrassment", "Big Show should get one more World title reign"... I don't know if anyone's told you yet, but it's not 2004 anymore. Why in the name of all that is holy, would Kane go over Stroman if they were to feud? Kane has
maybe two years left, while Braun is obviously somebody that WWE is looking at as a blue-chip prospect for the future. What does going over Braun do for Kane? Absolutely nothing.
Kane, Big Show, Taker, Sting, etc. are not the present, they are the past. People like Seth Rollins, Roman Reigns, Kevin Owens, Bray Wyatt, Cesaro, Dean Ambrose, and yes Braun Stroman are the present and the future. They are the ones that the WWE needs to build on, not a 45 year old Kane.
You also say, "you don't create the future by destroying the past." I agree, you create the future by phasing out the past, which is exactly what Kane is, the past.