If he’s allowed to recruit more followers things could really get out of hand. They’ll be setting up ‘figure painting sessions’ during lunch. You won’t be able to move for pots of paint, glue and little plastic weapons. If they really establish themselves, they’ll start building model scenery with lumps of polystyrene and modelling clay. Then using your desk as a gaming table.
Get rid of him ASAP.
Surely only an open borders fanatic could imagine that this country could cope with a sudden influx of 7 million people.
Mind you, open border fanaticism is highly fashionable these days.