A bad idea that is not very likely; the cure would be much worse than the disease.
According to the Comptroller's Office, property tax generated almost $70B in revenue in 2019; the state sales tax produced about $35B. The 'consumption' tax sounds like a VAT, but I can't imagine people accepting a sales tax burden more than three times what we have now. Such a high sales tax, 30% or more, would kill consumption. (Tripling the sales tax rate would not triple the revenue because people would buy less.)
In the world of tax policy wonks, ideal tax systems are built like a three-legged stool: income tax, property tax, sales tax. Each has advantages and disadvantages, complementing each other to create a stable revenue stream for government. Texas does not have one of the three legs, making our revenue system more unstable, and cutting out one of those two remaining legs would make things much worse, IMO.
Finally, basing all our revenue on consumption is very regressive, hitting poorer Texans much harder than those well off.