So, your claim is you know the situation over 8 years with every team and every player so well you can claim none of them ever started a player that wasn't clearly better than Crawford?
That alone throws up major red flags.
As for the bet you propose, you already admitted you were judging from watching Crawford play and said nothing of watching every other D-Lineman in the NFL play, so you are ignoring what is clearly a key element to your claim. But aside from that, who gets to decide the criteria? Is it stats? We all know stats alone don't tell the whole story, but even if going by stats, if stats are similar how do we decide who was better? Does it revert back to you simply saying "well, I've seen Crawford play, so I know"?
Let's look, for example, at 2018, which was Crawford's last healthy year. He started 15 games at RDE, had 34 tackles, 5.5 sacks, 4 tackles for loss, and 12 QB hits.
That same year, Michael Johnson started 15 games at RDE for Cincinnati, had 33 tackles, 0.5 sacks, 2 tackles for a loss, and 2 QB hits.
So, in that case do stats matter, or does the fact that you have seen Crawford play override what the stats indicate?