Peter Singer proposes a new one:

When people are prohibited from practicing their religion – for example, by laws that bar worshiping in certain ways – there can be no doubt that their freedom of religion has been violated. Religious persecution was common in previous centuries, and still occurs in some countries today. But prohibiting the ritual slaughter of animals does not stop Jews or Muslims from practicing their religion … Neither Islam nor Judaism upholds a requirement to eat meat. 

Russell Blackford counters:

What if your government banned the singing of Christmas carols tomorrow (I owe this example to Graham Oppy, I think)? I doubt that any form of Christianity requires the singing of Christmas carols. So does that mean that Christians (or at least those for whom singing Christmas carols is a valued practice) have not had their freedom of religion impinged on? Surely it doesn’t mean that. We’d still worry that this law was motivated by some sort of animus against religion – specifically against Christianity – and we’d still want to know why the state has any role in enacting laws on that sort of ground.