Not at all.
The assumptions are wrong.
There ARE heresies within the formalized aspects of the RC edifice.
There are more within the practices of a huge chunk of RC’s as individuals.
Of course, there are heresies within every congregation of all Christian brands.
You said: Of course, there are heresies within every congregation of all Christian brands.
There are none in the true Church, the One Holy Catholic and Apostolic Church that are true to what the Church teaches and upholds.
They are manifold outside the Catholic Church. You are correct about that.