How come people criticize a disabled man for his camera when he disabled and doesn't have any money?

So My friend andrew has been getting on my nerves and getting me angry a lot lately. I have bipolar and everytime that he annoys me with using an old camera I can't help but yell at him and cuss him out. He criticizes me for using an old casio camera that films in 480p and wants me to use my samsung galaxy s5 phone to record my videos since it records in HD. I don't see why is it so important to film in HD to keep an audience. I think my casio camera takes better videos than a sony handycam that he has. He says my camera is low quality videos and I don't see how it is low quality. I use quicktime pro to up convert my videos to 720 HD so my videos is technically in HD. How come he criticizes me for my camera? Is my camera really that bad and what should I say to him to get him to stop annoying me about it?
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