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It is very possible that they are overwatered. This will cause the flowers to lay over. Echinacea needs a good dry out in between waterings, and will not tolerate consistently moist soil very well.

This article will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/flowers/coneflower/growing-purple-coneflowers.htm

It does appear that it could be an Echinacea leaf. They get quite invasive in most areas, so you will likely find them in clusters!

This article will give you information on the types of Echinacea: https://www.gardeningknowhow.com/ornamental/flowers/coneflower/different-kinds-of-coneflower.htm

Make sure to follow all instruction based on acreage or volume of soil. This will give you the amount that you need to use.

Your hybrids have most likely just not survived and the native Purple Coneflowers are hardy and self seed; continue spreading through the garden.

Most hybrids are sterile and will not self seed.

Have had the same issue in my own garden...all the new colored hybrids have died off as well. I've become just content with the purple shades and the birds and bees are happy as well.

This could be a disease called Asters Yellow.
These articles will help you.

https://www.gardeningknowhow.com/ornamental/flowers/coneflower/coneflower-problems.htm
https://www.gardeningknowhow.com/plant-problems/disease/aster-yellows-disease.htm

Mealy bugs can be a bit of a nuisance, can't they... There are a few things that you can do.

This article will help: https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm