Arab ulema do not recognise Imam Abu Hanifa and the Hanafi madhab

As’salaamualaikum Mufti Saheb
.
I am a follower of the Hanafi madhab.
I would like to enquire about the following:

1.) Why do the arab ulema not recognise Imam Abu Hanifa and the Hanafi madhab. If they follow the Hambali or Maliki madhab, did not Imam Ahmed bin Hambal and Imam Malik recognize Imam Abu Hanifa and the Hanafi madhab?

2.) The arab ulema never ever make mention of Imam Abu Hanifa. Why is that so?

3.) Did Imam Bukhari have ill regard for Imam Abu Hanifa?

Jazaakallahukhair.
Was’salaam