Your parents are idiots.
They don't know anything about computers and will blame ANYTHING you do to be the cause of a virus because they think they have somehow more intelligence than you about computers.
Blockland is totally virus free. I guarantee it.
Add-Ons are always virus free. The one time a spam bot uploaded an Add-On with a virus it was taken down immediately. No one had downloaded it thankfully.
Same with all my friends/half the guys I see on youtube commenting on blocklands videos
Youtube:
"OMG THIS GAME GOT ME TONS OF VIRUSES DONT DOWNLOAD!!11!"
Friends who I got blockland for:
"Yeah, thanks for blockland. My mom said it gave us viruses and now I'm grounded. I agree with her, im never downloading blockland again!