It's weird seeing some sites adding trash coins like TRUMP etc purely because of a section of the public since they are totally useless and there are way, way better options out there.
Casinos may list coins like Trump Coin to attract a specific audience or to create a buzz. In the case of Betfury, I would guess that they want to attract an audience. The specific community of Trump coin that is gaining more popularity by time. And I am sure that Trump Coin will gain more credibility by listing it on reliable platforms. Trump Coin is listed on all exchanges with a market cap of over $3 billion, which provides investment opportunities for everyone, platforms and users.
The difference with casinos is that they take a higher risk by listing a meme coin associated with a specific popular person, especially since its price is unstable and can collapse completely at any time. This doubles the risk of damaging the casino’s reputation.