You state:  {“If demonic forces were killing a third of the planet these left behind people would not continue to worship demons but they do as per the above scripture”.}

Why would you assume that if demonic forces were killing a third of the planet, the people left behind would not continue to worship demons, but would instead repent?  Since the names of the remaining people upon whom the fifth and sixth trumpet judgments fall (Rev. 8:13), are not written in the Lamb’s book of life (Rev. 13:8, 17:8), you can be assured that they will not repent.  The same un-repentance is found in Pharaoh’s heart when he was confronted with the plagues (Exodus 7:22; 9:7).  

The angels that are bound in the Euphrates have nothing to do with the Angels in Rev. 7:1.  The Angels in 9:14 are bound, therefore they must be fallen angels since good angels are not bound (Rev. 20:1-3; 2 Pet. 2:4; Jude 6).  The four winds described in Ezekiel 37:10 and Revelation 7:1 also have nothing to do with each other.   You’re using an eisegesis approach to interpretation.  I recommend taking an exegetical approach to interpretation.  

The dry bones symbolize the restoration of the whole house of Israel to it’s own land, not an army for the purpose of killing a third of mankind.  Please read Ezekiel 37 in it’s proper context.  The colors of the breastplates of the demonic army (red, blue, and yellow) are correlated with the fire, smoke, and sulfur that proceed from the mouths of their horses, and have nothing to do with the different colors representing the 12 tribes of Israel.  I know many  scholars are not to sure what to do with the book of Revelation, but for some good commentaries on Revelation,  I recommend R.H. Charles,  Thomas Constable, or even E.W. Bullinger.