Hi Olivia,
Your grandmother LEGALLY migrated from Guyana during Windrush. The government approved and facilitated her passage.
That is not the same as the millions of fighting-age men jumping on dinghies and illegally entering Britain.
Hope this helps!
Just been paid off from my work less than a week before Christmas. Dinny fancy selling my arse down salamander street so if anyone has any work cash in hand for a few days it would be appreciated 👍🏼