But respecting other people's beliefs isn't just about allowing them to practice their beliefs. It's also about talking to and referring to people in a way that is respectful towards them. You claim to respect people's religious beliefs, but the phrases I've highlighted in bold below use language that looks inherently disrespectful. That contradicts your claim to respect religious people's beliefs:
It's perfectly possible to say that you don't believe in God and don't therefore celebrate (or see any purpose in) Lent without using words like 'silly' or 'guff' or 'mumbo jumbo'.
(The second quote is also of somewhat dubious accuracy since the phrase 'point out' implies that something is an established fact, whereas what you claim to be pointing out is just your personal opinion).
I realise there can be a fine line where if you genuinely believe that someone else's opinions are silly, then it can be difficult to find language that expresses your views without coming across as disrespectful, but difficult isn't the same as impossible!