You said it will fall upon ”this generation” and that’s what happened, it fell upon them in that generation. See below, everything is about Jerusalem and the generation alive at that time.
Mat 23:35 That upon you may come all the righteous blood shed upon the earth, from the blood of righteous Abel unto the blood of Zacharias son of Barachias, whom ye slew between the temple and the altar.
Mat 23:36 Verily I say unto you, All these things shall come upon this generation.
Mat 23:37 O Jerusalem, Jerusalem, thou that killest the prophets, and stonest them which are sent unto thee, how often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not!
Mat 23:38 Behold, your house is left unto you desolate.
Mat 23:39 For I say unto you, Ye shall not see me henceforth, till ye shall say, Blessed is he that cometh in the name of the Lord.
Mat 23:35 That upon you may come all the righteous blood shed upon the earth, from the blood of righteous Abel unto the blood of Zacharias son of Barachias, whom ye slew between the temple and the altar.
Mat 23:36 Verily I say unto you, All these things shall come upon this generation.
Mat 23:37 O Jerusalem, Jerusalem, thou that killest the prophets, and stonest them which are sent unto thee, how often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not!
Mat 23:38 Behold, your house is left unto you desolate.
Mat 23:39 For I say unto you, Ye shall not see me henceforth, till ye shall say, Blessed is he that cometh in the name of the Lord.
Not the evil generation no faith .All in Adam die.
Deuteronomy 32:20 And he said, I will hide my face from them, I will see what their end shall be: for they are a very froward generation, children in whom is no faith.