“I don’t read it; I protect myself. I don’t watch TV when they are talking about Manchester United, not because I don’t agree – most of the times I do – but it’s a way of me being healthy.
“My feeling as a coach is enough. I don’t need other feelings. The only way – there is no other way – is to protect myself.”
The analysis in BBC’s investigation was conducted with data science company Signify.
It looked at posts made during 10 Premier League matches and six WSL matches on 8 and 9 November, and found messages including racist slurs, homophobia and threats of violence.
Managers were targeted more than players, while 82% of abusive posts were posted on X, formerly known as Twitter.
Of all the abusive messages, 61% were sent from accounts in the UK and the Republic of Ireland. Data suggests the overall number is on the rise.
“I lose money from sponsors,” said Amorim.
“On Instagram I could earn a lot of money (but) for my protection of my family and living a normal life it is not worth some more dollars or pounds.
“Nobody can be tougher than me when we lose and when we don’t play well.
“Nowadays, it’s really normal to have that abuse, so it’s the only way to survive in this world.”
United finished 15th in the table last season, their lowest finish since being relegated in 1973-74.
They were beaten by Tottenham in the final of the Europa League as they missed out on a place in Europe.
This season they were knocked out of the Carabao Cup by League Two side Grimsby Town and are seventh in the Premier League before Thursday’s home game against West Ham.