No they cannot deal with the i2 and neither can the tiger or the panther. its more of an issue that the is has way to much armour for its price and less weaknesses then the KT
You have no slightest idea what you are talking about here.
And if you are serious, you should be constantly spamming forums for KT nerfs first because allied AT is weaker and KT got more armor and health, the only disadvantage, speed is completely nullified by vet1 and it completely obliterates armor and infantry in much shorter and more reliable matter then tiger and IS-2 and panther put together.
If you expect to stop IS-2 with a single source of AT you are equally naive as allies expecting to stop tiger with single jackson or SU-85.