The protest at the hotel was part of a wave of disorder which swept across the country in the aftermath of a knife attack in Southport in which three children were killed.
Daniel Calder, defending, told the court that Smith had not set out to attend the protest on the day, and had been passing the riot when she “foolishly” got involved.
He said that Smith had not expressed discriminatory views and did not know what an asylum seeker is.
Smith was handed a community order and made to attend reviews at a women’s problem-solving court, and carry out 100 hours of unpaid work.
Her mother, Vanessa Smith, 42, was also at the protest and admitted violent disorder.
She will be sentenced on Thursday.
Judge Patrick Field previously warned the grandmother that “all sentencing options” would be open to her, including “a custodial sentence”.
