A) Not ONE gadol holds that the 3 oaths are in effect. NOT one!!! Anyone with Daas understands this.
1) the 3 oaths is a nice Medrish. It is not mentioned anywhere in Navi.
2) it was ONLY during the first churban. There were NO Oaths at the second.
Just use your Daas. Name ANYONE that disagrees and then refer back to my first point.