I can't open the door of my honeycomb T4124 clothes dryer

SOURCE: clothes dryer

washer dryer and dryer ony machines differ in a huge way. the big diff. is the drums on each are completly different sizes. the conventional dryer has the bigger, giving better air flow and tumble to clothes. the w/d has a smaller drum thus less air flow and less tumble between clothes. the best way to see this effect is remove half the clothes after a wash and then select a drying cycle. u will see that by giving the clothes more room to tumble free of each other rather than tumbling in a large ball will dry them. washer dryers are really only a marketing tool.
(ex main brand engineer)

SOURCE: dryer door comes open

Replace the door latch.
Yours is worn out.
They just pop in.

SOURCE: my dryer is destroying my clothes,

There is a gap between the lip of the drum, and the dryer housing. Usually the gap is not large enough for clothes to get caught up..
I think the drum should be removed, and the drum bearings checked for excessive wear. This can cause it. There are like 6 rubbing blocks at the front, that the lip of the dryer runs on. This is what I mean by bearings. There will also be a single drum bearing at the back of the drum, check this also for wear or damage.
Hope this helps.