Why would the comparison not bring any good? One killed another. Comparison is bound to happen.
A so-called “Taabi” killed a Sahabi of Rasoolallah and a member of Ahlul Bayt. He then enslaved and abused women of Rasoolallah’s family and brought them in his court in front of other "taabi"s.
If you call Yazid a “taabi” then you should also call Abu Jahl a “Sahabi”.
All such opinions of these NASIBI scholars go down the drain when one compares who Imam Hussain was, and who Yazid was.
May be this is why you are afraid of comparisons between them, because the comparison clearly shows the low character of such scholars who defended Yazid’s killing of Ahlul Bayt.