Poorly Performing Sequence and Bad(?) Management

I just started working in tech sales last year. I work for a smaller startup that has a fairly new sales process.

Our current outreach sequence has a sub 2% replay rate, more than half of which are negative (remove me from your list). And converts to meetings at less than 0.06%. From everything I have seen, this appears to be unusually low for a sequence. We use emails, calls, LI messages / connects. But the numbers do not suggest that this works.

My boss wrote the sequence and seems unwilling to change it despite glaring issues and an apparent lack of best practices. We utilize little to no personalization. The hope seems to be that we will spam enough people that someone will eventually say something back.

The primary issue seems to be that the email focuses almost entirely on what our product does, and not the pain it solves. But this has been justified as "solution selling".

I have permission to write a new sequence, but am I off base in saying that our current one is garbage?

Thanks for the advice.