The UK is at more or less the same price as it was in 2000. France same as 2008. Meanwhile SPY is up 2.75x in that period. The US seems to be the anomaly. Value doesn’t always go higher. Maybe the USA is special, maybe not.
The UK FTSE all share total return index, which accounts for reinvested dividends, is at 8430 today and was at 2870 in May 2000. That's an annualized return of exactly 5%/year
SPY is differently weighted than for example FTSE. Most indexes do not factor in dividends, if you look at the total return data where dividends are reinvested you will see there are gains in Europe, but less than the US.